Surly track cogs are designed to spin onto standard ISO-threaded (1.375" x 24tpi) hubs, so they will work with most English, Italian and Japanese hubs, including the Surly New track hubs.

Top Features of the Surly Track Sprockets (13-16T)

Precision CNC Cro-Mo

Wear resistant hardened 4041 material

ISO Threaded (1.375x24Tpi)

3/32" or 1/8" Chain sizes

Product Data

MTB:

Yes

Road:

Yes

The thread base is 7.4mm wide for maximum thread engagement while maintaining enough room for a track lockring to thread on. Like our cassette-splined cogs, these are made from machined, heat treated and chrome plated SCM415 CroMoly steel, so they are tough and long lasting.

Track cogs are available in either 3/32" or 1/8" tooth thicknesses and in every size from 13T - 22T

About Cassettes & Freewheels

Cassettes and freewheels for bikes are a cluster of sprockets in a range of sizes offering a multitude of gear ratios. The difference between the two is, a cassette slots onto the freehub, which has the ratchet built in and is then secured with a lockring, whereas a freewheel is a cluster of sprockets built around a ratchet and threads directly on to the hub. Cassettes and freewheels come in many ratios, close ratio is when the number of teeth increase in small increments of 1 or 2 at a time, whereas a wide ratio is when the teeth increase in larger increments of 3 or 4 at a time. Most systems will use a cassette hub as these allow for a wider bearing spacing and increased axle life, you can also fit a larger quantity of sprockets onto a cassette hub with 11 speed systems now becoming available. With cassettes you must use the appropriate spacing for your gear levers and rear mech, Shimano and Campagnolo are not interchangeable so you will need to match the cassette to your levers for smooth and precise shifting. Sram and Shimano chains and cassettes will work together as they use the same spacing.

About the Surly brand

Surly Bikes manufacture a wide range of bikes, frames, parts and accessories. Surly are based in Boomington, Minnesota USA and were established in 1998. The company aims to build solid, quality components for a reasonable price.

Delivery Information

The delivery options available for shipping this product along with the contents of your basket to United Kingdom are:

International Delivery

Wiggle ships to over 100 countries. To see what delivery options are available for other destinations you can update your delivery destination via the International Options feature at the top right of the website.

Rated 5 out of
5 by
Santamas from
Definitely would recommend. Good qualityExactly what I needed. I didn't know what I was looking for and so took it to a shop and the mechanic brought this product up on wiggle.
I bought it and took the bike back to the guy who assembled it for me.
The bike works like a charm. No problems since changing sprockets.

Date published: 2016-11-16

Rated 1 out of
5 by
RoadRider1885 from
Poor QualitySorry but I could not get on with this sprocket on my track bike. The teeth were too long and caught on the chain resulting in a very lumpy ride. After swapping to Dura Ace Sprocket the ride was silky smooth.

Date published: 2015-06-12

Rated 5 out of
5 by
citychris from
Good GearI went for the 13T which might be a bit much for a city ride but the gear itself is fine. Been using it for 4 months and no problems!

Date published: 2014-10-12

Rated 5 out of
5 by
AnatoliCabana from
This sprocket is SILVERGven how long these sprockets last, you just can't beat 'em. The 8 different sprockets that I own have been used on commuter fixie and MTB XC single speed The only one that has properly worn out is the 13T sprocket I had on my XC bike whie using it as a commuter in Doha and Beijing.
Highly recommended.

Whats the 1 / 8&quot; size count for, and is their much difference between the two fourteen toothed?.

Im new so bare with me :)

Asked by: Deploderer

The 1/8&quot; and 3/32&quot; sizings of the cogs indicate the width of chain the cog is suitable for. 1/8&quot; are for wider 1/8&quot; chains (more normally found on track style fixed gear bikes/BMXs) and 3/32&quot; are a slimmer chain perhaps more normally found on more urban/commuter style singlespeed bikes. Each cog is available to suit each width depending on what width chain/set up you are running.

Answered by: wiggleshane

Date published: 2013-10-23

will this product fit my fuji feather hub?

Asked by: robbie1

Unfortunately we don't stock Fuji and I can't find any information on the thread on the Fuji classic rear hub. I would recommend contacting Fuji directly to find out what thread the fixed/fixed rear hub uses, it needs to be ISO Threaded (1.375x24Tpi) to fit the majority of fixed cogs.

Answered by: WiggleDean

Date published: 2013-10-23

Charge Plug

Will this sprocket fit a Charge Plug 1? I already have a lockring. Do I have to get the Surly one?

Asked by: fixienewbie

I can confirm this should fit the hub without issue.

Answered by: WiggleAndyE

Date published: 2014-06-10

Will this fit a 2010 Felt Brougham single speed?

Asked by: Comforteagle2

Unfortunately this does not look to be compatible as Flet list the stock sprocket that is fitted to the bike as 17T x 1/2 pitch x 3/32 width. The LifeLine 17t - 20t Fixed Gear Track Sprocket 3/32&quot; looks to be a suitable alternative.